public static void main(String[] args)
{
double a = 0.07;
double b = 0.02;
double c = (a + b);
double d = 0.09;
System.out.println(c);
System.out.println( c - d);
}
}
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请看这个测试,为什么?
public class test { public static void main(String[] args) { double a = 0.07; double b = 0.02; double c = (a + b); double d = 0.09; System.out.println(c); System.out.println( c - d); } }